Helm of Obedience [Alliances] Phyrexian Dragon Skeleton where the river itself will

where the river itself will stand up and roar

it fights up to one target creature an opponent controls

A thousand rays shine forth and meld into one

Each opponent sacrifices a creature

you may pay {2} any number of times

Helm of Obedience [Alliances] Phyrexian Dragon Skeleton where the river itself willSet: Alliances Type: Artifact Rarity: Rare Cost: {4} {X}, {T}: Target opponent mills a card, then repeats this process until a creature card or X cards have been put into their graveyard this way, whichever comes first. If one or more creature cards were put into that graveyard this way, sacrifice Helm of Obedience and put one of them onto the battlefield under your control. X can't be 0.